Tammi is a distinctive girls' name in United States, ranking #9808 in 2000 with 10 recorded births. The name reached its all-time peak in 1996 with 16 births ranking #6035. Since 1996, the popularity has decreased by 37.5%. In 2000, approximately 1 in every 181,597 girls born was named Tammi. FALLING Recent data shows the name is currently falling.